Photographic material suited for use in diffusion transfer photo

Details Photographic material suited for use in diffusion transfer photo Photographic material suited for use in diffusion transfer photo

1979-03-15

1980-11-04

Schilling, Richard C.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430212, 430217, 430218, 430227, 430236, 430239, 430240, 430242, 430244, 430543, 430559, 430564, 430566, 430598, 430599, 430621, 430965, G03C 140, G03C 554, G03C 110, G03C 148

Patent

active

042321077

ABSTRACT:
Said material contains a quinone-type compound which corresponds to one of the formulae (A) or (B) and which is capable in reduced state and under alkaline conditions of releasing a photographically useful group e.g. a dye: ##STR1## wherein: each of (Nuox).sup.1 and (Nuox).sup.2 represents an oxidized nucleophilic group,

REFERENCES:
patent: 3698898 (1972-10-01), Grasshoff et al.
patent: 3728113 (1973-04-01), Becker et al.
patent: 3980479 (1976-09-01), Fields et al.
patent: 4139379 (1979-02-01), Chasman et al.

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